At the end of the previous level:the infinite spam of light shot is the best opportunity to discover spawn kills with it. Don't move and spam it at the beginning instead of the heavy one that circles more easily. Outside,you can hit an insect and the two guards faraway.Shrink through the boulders.
Individually:start in blue,run a bit and grab+multipunch (it increases your attack rapidly);the blue explosion is the solution to every major fight,more effective with a double tap that can be delayed.
How to profit of the faraway KO's effectively:climb,bodyslam and change color during the gold animation,other possibilities before a QTE starts,under a zip line,when dragging or transported like in 2-2 and 5-2.
Teleport+somersault the isolated humans,this attack goes high enough over certain ledges.Dodge+longpunch the first relicbot.
The dodgespam can go through the spinning obstacles without damage.
How to hit the two robots on the mountain:jump only once before shooting.
A major shortcut with a teleport...between many...to the duo where there are stones to toss.